Shore



Aug 6 1945 A. NEGOVAN vE11' AL l 29405321 SHORE Filed Aug. e, 194sPatented Aug. 6, 1946 UNITED STATES PATENT OFFICE" Albert Negovan,Chicago, Ill., and Estel R. Strat- Y ton vand William Clark Roggie,Indianapolis, Ind., assignors to Baker-Roos, Inc., Indian- Y apolis,Ind., a corporation of Indiana Application August 6, 1943, SerialNo.497,674

Y lr Our Vinvention relates to adjustable shores,l and more particularlyto that type oi shore in which one of two telescoping parts comprises apair of laterally spaced, longitudinally extending members between whichthe other shore-part is adjustablyl received.

It is the Yobject of our invention to produce for such a shore aremovable extension by the use of which the effective length of theshore can be increased. More speciiically, it is your object tointerconnect the shore and extension by a means which will hold theextension rmly in alinement with the shore without requiring anexcessive amount of longitudinal overlapping of the extension and shore.A further object` of our invention is to adapt a shoreV not only for thereception of an extension but alsofor the reception of an auxiliary headby means of which the area which the shore aords for the support ofobjects resting upon it may be materially increased.

In carrying out our invention, we provide the two-member shore-part,which is usually used as the upper part of the shore, with a ,cap whichserves not only to hold in properly spaced relation the upper ends ofthe two members of vwhich the upper short-part is composed but whichalso serves to receive the lower end of a shore-extension. The cap andshore-extension are provided with intertting means which serve to holdthe shore-part and extension firmly in alinement with each other. 'Thecap is so formed as not to interfere with the usual use ofthe shore inthe absence of the extension, and is desirably also formed to receive ahead of increased width.

The accompanying drawing illustrates our invention:

Fig. 1 is a side elevation of the complete shore with the extension inplace thereon; Fig. 2 is a fragmental isometric view illustrating theupper end of the shore; Fig. 3 is an isometric view illustrating thelower end of the shore-extension; Fig. 4 is a plan view of the upper endof the shore showing, in section, the lower end of the extension inplace therein; Fig. 5 is a vertical section through the upper end of theshore and extension; and Fig. 6 is a fragmental side elevationillustrating the auxiliary headin place on the shore.

The shore illustrated in the drawing comprises a lower part Ill formedof pipe and provided with a suitable foot I0. The upper part of theshore comprises two laterally spaced vertically extending members I I,which may be wood 2 x 4s. The upper end of the pipe l0 is provided withacross- 10 Claims. (Cl. 248-354) i headv I2 slidably engaging themembers II, while the lower ends of the latter are provided withco-operating dogs I3 adapted to gripthe pipe III and hold the shoreextended under load. The construction of the lower shore part and thedogs I3 forms no part of our invention.

The upper ends of the two members I I are held in spaced relation by acap I5, the particular construction of which does form part of ourinvention. As will be clear from Fig. 2,- the cap I5 embodies co-planarend portions I6 which overlie the upper ends of the shore-members I I.The centralportion of the cap is in the form of a stirrup, comprising vtwo vertical side walls II which extend downwardly along the inner facesof themembers Il and the lower ends of which are joined by ahorizontally extending intermediate or bottom wall I8. Desirably, thecap also includes strengthening flanges I9 which extend verticallydownward from the side edges of the end portionv I6 and which'bridge thegap between the two members II. The cap may be formed as a casting,A ormay be constructed by welding together pieces of properly shaped steelplate. Bolts 20, which pass through the vertical legs Il Vand therespectively adjacent members Il, serve to hold the cap in place. Y

The extension 22 for use with the shore may be of any desired length andconveniently comprises a wood 4 x 4. The lower end of the extension 22is reduced in both transverse dimensions so that it may be receivedwithin a hollow sleeve 23 which desirably has the same exteriordimensions as those of the body of the shore-extension.

The cap I5 is so proportioned that the sleeve 23 maybe received betweenthe two side walls Il and flanges I9 of the cap; and the sleeve and capare provided with interengaging portions by means of which the extensionis held in proper alinement with the shore. As shown, such provisionsinclude tongues 25, which are secured (as by welding) to two oppositesides of the sleeve .23 and which are receivable in grooves 26 formed inthe side walls II of the cap. The interengaging faces of the tongues 25and grooves 26 may converge downwardly slightly, so as to produce ataper twhich will become tight when the .wall I8 of the cap. Desirably,the key-receiving grooves 2B of the cap are slots extending completelythrough the material of the side walls I1 and continuing into theintermediate leg I8 to 3 receive the lower ends of the tongues, whichproject below the lower end of the sleeve 23. To prevent injury to thewood shore-members li when the extension is being inserted, the end andinner face of each of such members may be protected by an L-shapedsheet-metal protector 3i! interposed between the member and the cap.

By providing the lower end of the shore extension with the metal sleeve23, and by forming the Y sleeve-receiving portion of the cap l5 ofmetal,v we are enabled to obtain a relatively snug iit between the capand sleeve, whereby the extension will be held rmly in proper alinementwith the space between said members at opposite sides thereof, said capbeing provided with a central stirrup extending downwardly between saidtwo members and said anges and having side and bottom Walls, ashore-extension, and a sleeve upon the lower end of said extension, saidsleeve being adapted to be received in said stirrup and between saidflanges, opposite sides of said sleeve and the side Walls ci saidstirrup being provided "with closely intertting, longitudinallyextending '"Itongues and grooves preventing relative movethe shore.Moreover, the fit of ther tongues within the slots 2e, and the in oftneears 2i within the notches 28 aid in preventing relatively lateralmovement of the shore and theextnsion,

and thus aid in maintaining those elements in.`

surface for any object supported by the shore s' when the extension isnot in use the end portions I6 of the cap l5V desirably extend outwardlyfor a distance beyond the outer faces of the members H, as will be clearVfrom the drawing. In the absence of the'extension 22, objects may besupe ported on the upper surfaces of the end portions i6 and the upperedges of the flanges i9, which are all coplanar. i

The cap l5 is adapted for the reception of any desired form of laterallyprojecting auxiliary head, such for example as the plain auxiliary headillustrated in Fig. 6. This auxiliary head conveniently comprises alength of 3 x 4 or 4 x 4 to the lower surface of which there is secureda metal clip 36 adapted to engage the projecting end of either of theend 'portions i6 of the shorecap. Also secured to the under surface ofthe head 35 is an L-shaped member 31 one leg of which is vertical andadapted to extend through a slot 3B in the other of the end portions I6of the shore-cap. kA removable key 39 receivable in a hole in suchmember may be employed to hold the head 35 releasably in place.

The lower end of the extension 22 is preferably ilush with, or evenslightly below, the lower `end face of the sleeve 23 so that when theextension is in use its lower end will engage the 'bottom wall I8 of theextension-receiving stirrup,1whereby verticalloads will be transmitteddirectly from the extension to the cap independently of the sleeve.

While we have illustrated and described the shore as vertically arrangedwith the short-'part comprising the members il uppermostit is to beunderstood that this is merely for convenience of description. The shorecan be inverted if desired, 0r it can be used in a horizontal 'orinclined position.

We claim as our invention:

1. In a shore having upper and lowertelescoping parts, said upper partcomprising two laterally spaced, vertically extending members, a caphaving end portions respectively overlying the ends of said memberssandflanges intercom necting said end portions and extending across ment ofsaid sleeve and stirrup in a plane perpendicular to said flanges,

2. In a shore having upper and lower telescoping parts, said upper partcomprising two laterally spaced, vertically extending members, a eaphaving end portions respectively overlying the ends of said members andflanges interconnecting end portions and extending across the spacebetween said members at opposite sides thereof, said cap being providedwith a central stirrup extending downwardly between said two members andsaid anges and having side` and bottom walls, a shore-extension having alower end adapted to be received in said stirrup and between saidflanges, opposite sides of said extension and the side walls of saidstirrup being provided with closely intertting, longitudinally extendingtongues Vand grooves preventing relative movement of said extension andstirrup in a plane perpendicular to said flanges.

V3. The invention set forth inrclaim l with the addition that saidtongues are tapered and of gradually decreasing width downwardly, thetongue-receiving grooves being correspondingly tapered.

4. The invention set forth in claim 2 with the addition that saidtongues are tapered and of gradually decreasing width downwardly, thetongue-receiving grooves being correspondingly tapered.

5. The invention set forth in claim l with the addition that saidgrooves are located in the side walls of said stirrup, and bolts passingthrough each stirrup side wall 'on opposite sides of the groove thereinand also through the adjacent vertically extending member of the uppershorepart.

6. The invention set forth in claim 2 with the addition that saidgrooves are located in the side Walls of said stirrup, and bolts passingthrough each stirrup side wall on opposite sides of the groove thereinand also through the adjacent vertically extending member of the uppershorepart.

7. In a shore, upper and lower telescoping parts, a centrally disposed,upwardly opening stirrup at the upper end of said upper shore-part, saidstirrup having spaced, parallel .side walls, an extension receivable insaid stirrup between said side walls, said side walls and the adjacentfaces of said extension being provided with closely interftting,longitudinally extending tongues and grooves preventing relativemovement of said extension and stirrup in a plane parallel to lsaid sidewalls of the stirrup, f

8. The invention set forth in claim V'7 with the addition that saidtongues are tapered and of gradually decreasing width downwardly, thetongue-receiving "grooves being `corresrmndingly tapered. f 1

9. In a shore, upper and'lower telescoping parts, a centrally Ydisposed, upwardly opening stirrup atfthe upper end o'f-s'aidup'pershore-part, said 'stump having spaced, parallel' side walls and' abottom wall, an extension adapted to be received in said stirrup withits lower end supported on said bottom wall, the lower end of saidextension and said bottom wall having closely intertting provisionspreventing their relative lateral movement.

10. The invention set forth in claim 9 with the addition of a rigidsleeve surrounding the lower end of said extension, said interttingprovisions comprising downwardly extending projections on said sleeveand projection-receiving openings in said bottom wall.

ALBERT NEGOVAN. ESTEL R. STRATTON. WILLIAM CLARK ROGGIE.

